Display device

Abstract

The present disclosure relates to a display device, and more particularly, to a display device that can prevent a short circuit between signal lines. According to an embodiment of the disclosure, a display device comprising: a substrate having a display area and a non-display area; a pixel disposed in the display area; a first driving voltage line connected to the pixel in the display area, and extending to the non-display area; an initialization voltage line connected to the pixel in the display area, extending to the non-display area and overlapping the first driving voltage line in the non-display area; and a dummy line disposed in the non-display area, and overlapping the first driving voltage line.

What is claimed is: 
     
         1 . A display device comprising:
 a substrate having a display area and a non-display area;   a pixel disposed in the display area;   a first driving voltage line connected to the pixel in the display area, and extending to the non-display area;   an initialization voltage line connected to the pixel in the display area, extending to the non-display area and overlapping the first driving voltage line in the non-display area; and   a dummy line disposed in the non-display area, and overlapping the first driving voltage line.   
     
     
         2 . The display device of  claim 1 , wherein the dummy line has a floating state. 
     
     
         3 . The display device of  claim 1 , wherein the dummy line is disposed on a same layer as the initialization voltage line. 
     
     
         4 . The display device of  claim 1 , wherein the first driving voltage line comprises:
 a first lower voltage line disposed on the substrate, and extending in a first direction; and   a first upper voltage line on the first lower voltage line, the first upper voltage line being connected to the first lower voltage line, and extending in a second direction intersecting the first direction.   
     
     
         5 . The display device of  claim 4 , wherein the dummy line overlaps the first upper voltage line. 
     
     
         6 . The display device of  claim 4 , wherein the dummy line is connected to the first lower voltage line. 
     
     
         7 . The display device of  claim 4 , wherein the dummy line is disposed on a same layer as the first lower voltage line. 
     
     
         8 . The display device of  claim 4 , further comprising an insulating layer between the first lower voltage line and the first upper voltage line,
 wherein the dummy line is disposed between the substrate and the insulating layer.   
     
     
         9 . The display device of  claim 1 , wherein the dummy line is disposed adjacent to the initialization voltage line. 
     
     
         10 . The display device of  claim 1 , wherein one end of the dummy line is disposed at one end of the substrate. 
     
     
         11 . The display device of  claim 10 , wherein the one end of the dummy line comprises a carbonized region. 
     
     
         12 . The display device of  claim 1 , wherein the dummy line has a width larger than a width of the initialization voltage line. 
     
     
         13 . The display device of  claim 1 , further comprising a plurality of dummy lines comprising the dummy line. 
     
     
         14 . The display device of  claim 13 , wherein the plurality of dummy lines each overlap the first driving voltage line, and
 the plurality of dummy lines are not connected to each other.   
     
     
         15 . The display device of  claim 1 , further comprising a second driving voltage line overlapping the dummy line and the initialization voltage line in the non-display area. 
     
     
         16 . A display device comprising:
 a substrate having a display area and a non-display area;   a pixel disposed in the display area;   a first driving voltage line disposed in the display area and the non-display area;   an initialization voltage line disposed in the display area and the non-display area, and overlapping the first driving voltage line in the non-display area; and   a dummy line overlapping the first driving voltage line in the non-display area.   
     
     
         17 . The display device of  claim 16 , wherein the dummy line has a floating state. 
     
     
         18 . The display device of  claim 16 , wherein the dummy line is disposed on a same layer as the initialization voltage line. 
     
     
         19 . The display device of  claim 16 , wherein the first driving voltage line comprises:
 a first lower voltage line disposed on the substrate, and extending in a first direction; and   a first upper voltage line on the first lower voltage line, the first upper voltage line being connected to the first lower voltage line, and extending in a second direction intersecting the first direction.   
     
     
         20 . The display device of  claim 19 , wherein the dummy line overlaps the first upper voltage line. 
     
     
         21 . The display device of  claim 19 , wherein the dummy line is connected to the first lower voltage line. 
     
     
         22 . The display device of  claim 19 , wherein the dummy line is disposed on a same layer as the first lower voltage line. 
     
     
         23 . The display device of  claim 19 , further comprising an insulating layer between the first lower voltage line and the first upper voltage line,
 wherein the dummy line is disposed between the substrate and the insulating layer.   
     
     
         24 . The display device of  claim 16 , wherein the dummy line is disposed adjacent to the initialization voltage line. 
     
     
         25 . The display device of  claim 16 , wherein one end of the dummy line is disposed at one end of the substrate. 
     
     
         26 . The display device of  claim 25 , wherein the one end of the dummy line comprises a carbonized region. 
     
     
         27 . The display device of  claim 16 , wherein the dummy line has a width larger than a width of the initialization voltage line.